the purpose of a water system?
systems simulate potentially dangerous conditions that suddenly exist when a
dry surface becomes wet. A water film directed
onto the measured surface in front of the measurement tire simulates the surface
conditions present for rainy weather. The rain simulation is an integral part
of functional friction measuring, performed to analyze the maintenance status
of the measured infrastructure surface with regard for regulating protocols.
ASFT water systems
are an integrated part of the CFME system.
A water tank is installed in CFME vehicles or installed on the towing
vehicle for trailer CFMEs. The water
system, a product of an ASFT continuous improvement process, is completely automated
using an electrically driven pump controlled by the NG computer system. The NG computer system receives continuous
inputs for the water flow and automatically regulates the water pump to the
speed of the friction tester. By the touch of a button, the water film is correct
and according to regulating protocol specifications!
The ASFT automatically
regulated water system is easier to use and is very efficient. Traditional self-watering systems, using
mechanically driven pumps, require the operator to calibrate based on water
pressure and speed. An error in speed or
in calibration can cause an erroneous friction measurement! The ASFT water system distribution is fully
automated and based on the operator’s selection for the desired measuring
protocol. There is no requirement for
operator intervention during the friction measurement! Water usage is optimized based on computer
automation which assists the operator to achieve the maximum usage of the water
in the water tank!